Bearing for food grinder shafts



Nov. 24, 1931.A w. F. s'rlMPsoN A 1,833,186

A4hmmm@ Fon FooD @BINDER SHAFT;

Filed Nov. 18. 1927 2 Sheets-Sheet J Nov.,24, 1931. w. F. sTlMps-QN 1,833,186

` BEARING FOR FOOD GRINDER SHAFTS Fild'Nov. 18. 1927 2 sheets-Sheet 2 Patented Novi 24, 1931 shafts offsuch machines.` Y

T i ""Itfis usual ii'food Vgriliding maChineSto 5 provide a spiralV Wormfor advancing food to the outtei1 menibeis, and the reactionof the food aganstthis Worm occasions a; cori- Qsider'a-bi'e Areawgir'll axial thrust, It islam; (Hof-V lect ofthepi'esent iiiventiouto proviief-i I@ Simpe "niech'anism for; relieving" thisi axial whereby the' hearings" will? bepftd frQm Vaglzmt meat juiroesetc.; 1i-1 1 fto'ncausfe rapid 7 deterioration-'of' the; bearings; while permit- Shoull"suchsiibstitiitiof beoomenecesjsgiiy ori f-odgrinder-m.which myjinyemionfigepi' plied? j l l3'0 "Figure 2 isaA Vertical4 liigitu'di'lal sectiofn,

View of `said `food 'griid'ei" :with the portion thereof broken' avirziy.V ,Y n UFigure STS-1a similiar View. disclosing the? i use of a'n altenative type of thrust' bearing f fonithat illustrated in Figure A Figure 45 isa,- re'end View of the;impifovd;V

disolosi'n fan adjustment -In'eans for a beripg; usb-111g. f`

{.F-igure' is a perspective' View of@ looking mbar e, s i

cross sectionalfView.ttkeilfV u @inademen integrally; rising fr0 itslperiprreeliengagement-fb' f o f tinueto vlockv the bushinglevenafter it {by sicrewiplugjQ/ or the like" UPOII the reaendV of the Worm shaft 11', 13 is formed 'a transverseV rib engageable byy any ksuitable lmemberV for ycommunioatinga drive to vthe WOlm. T1' .i

v Considering now `moie fully theutility of Vthe desonibed construction,- itis Vto` be undenstood ',thatftle Vfengagement of vthe shaft' poijuanV im; the;annu-111sl 12j 'of the' barrelVV is;

notl for thepur'po'se of providing a rear bear`- ing yfor the Wormloutz;rather to'.establishA Y such a seal as .Willtend toprevent any forricant to` `eontamirlateY tfood.#advancing Y ventinganyrearvvaid passagelfitmfthe' ood chamber of the barrelof'food paiticles 01"V A lui'esf vvhioh,y if .allowedy Ito enten the lthrust 'earing poitionf Vof" the fhariel,V vwould tend tol cornode thethxfustfbeaiing members'. Any

l isffffurtheimoiej prohibited folining.,Iad- A ,wormafsecondary 1vol-m groove 27,*ftenidv iiigto contin'uously feed yany juioesfor vparvvtioles'forwardly@e., avvay froj'mlt'heannlus 'Er-vom'. time-.to ftimsegfhwanbween.the -engaging faces4 of s the .ring 14Y and 'bushing zogt lanni@said;bushing @afhaling beingracqomplishedithe key-,1i 'member lala againfsecnred inQitsjjlposition .of use,y with i n its innen vend 'engaging any convenient one of `the.inotohesfQO 4vto. i lock -the yb114shi1-1g 1,6,

agansnanyf-metie ,shiftinaelt ijs; @Q1-2b@ noted',that- .'thebushing 16 functions both Y as aflthrus't bearingmember"4 and as af jour;

nal iheari'ng member maintaimingj the` rearA endpottion of the'worm properly. centered.

' vvithin the barrel.l Also the fovvardlypro-r jeeting'portion 18a ofthe key 19 willeonhas `been advanced sa' onsidenablev 'numheij Y lfalr'i-1as,v Vand under- .Susihl Conditions.' the Insomeinstallations grinder, it will be .prefezjredto4 'provider `atk the reaif vend of the-Worm aiballtype-ofthrust rangemeniof :parts Smm-insignia 3 i may Y *A rbei; employed-1 VThat stwSayanLphCe ofthe so.A

oollar 14 and bushing 16a. seftof lleal-l 'mem-,j

Ybers;f28 engaged fbetweifaspair 'OfzhallAl racemembersw and@ reanwardlyoftheganwi. Y "11111118l now serves to *fbers ll i' ffii. T/.I .7, A, I 133.-Afeedgrinder.Comprisinga-gbanae1hav,

shoulderedr'rear extremity of thesha'ft,y org tion 11. Alsov the acemembers 29 an 3.01V may be'forced `forwardly to ,compensateforf f` wearl byfrotation fof the collar 175` ygort the Worm shaft may lloe. foreedrearlvvardlyby roftation ofthe front adjustmentlringi) forl'the samepurposa. u f Thus iti Vwillr loelseen' that-the saIneE-s'haft and casingoonstructio'n isadapted to; be fitted.;A vvith'gu either of two;different4 types of `thrust i jgbearings, bygthe rl'eady! substitution of" a few i While la 'willi-bail @paient fha" the 11h15- s 1 trated emloo (jliments. 'of my invention herein Y .disclosed vare 'W'e'lliialeulated vto adequately y *Y f "fullltheiobjects'landadvantages.pi'imarily stated, it i'sto be Junolerstoodfthat` the 'invenf tion is 'susoep'tible'to vai'a`tion, mod i fieation .Y

and (change, Withinfthe spiritand'scopefof thesubjoined claims.'

. Whatl claim( is.:

1.l A food grinder eo'mpisising aloarrel. Y

itermediately formedwithfa food delivery openingandv yhaving Va food. outlet` atY its.'fo.1j' wai-fd end', foodl cutting means 'carried-by tatalolefin saidI bafiel advanoingffoodto said cuttingmeans fromsaidinlemsaid worm arrying a shaftv at itsfrearendfoifmd vvith o shaft .andhaving la ltlffkusyl'bearing .e'ngyige-V 1, ment withV said shoulder, aneizternallyand" an annular` `shofuldelfal ring embracing Iinternally threadedf 'collar fexternallyfenga'g'f Y j" ing and extendifngvvithin the :rear end lpoiftion of said ,barrelg'a hushingisQi'evv-thleadedj 190 in theintenalthreadsjof.saideollairembiaofj f o ingsaid shaft and rhaving a thu's'tbeaingen"f kgagement Withjsaid 1'ing,]andgmeans.t,z'a'rriedY Y by said Collar foriholding:said bushing-in f 2. Al foodV grinderzfcomplfisingwa 'barrel having anl interinediaije. food deliveiyf ofpening andy having at itsV forvvardfend a f'oo'doutfV le@ fQOd Cutting. meansfcari'd fbi 'thire Wardend of said barrel, a Worm rotatable in said'barrel foradvancingfoodtosaid euttingmeans from said 'food outlet', said' Worm hay: ing a shaft at its vrear. end' formed with an annular shoulde1f,'an annulusgrigidlyinf teriofly earriedloy said lm iinehv .and embiaeing said shaft and forming a seal againstthef. T

and'ediilstebl axially ofethe barrltoftke.

l in the notch of said bushing to lock the bushf 1,833,186 y n e `3vvl ing an intermediate food inlet andan outlet at its forward end, cutting meansoarriedby `said barrel at its forward end, a worinV rotatable in said barrelv for advancing food'to said cutting means from said inlet, said worm having a shaft at its rear end, an externally g and internally` threaded collar externally threaded within the rear end of said barrel and formed with a radial slot inits rear faoe,

a bushing journaling said shaft Aand screwthreaded in the internal threads of said ool- Y lar, for relative longitudinal adjustment 4to 4compensate for wear resulting from the rearf ward thrust of the worm,fsaid bushing hav,

l5 ing a notch in its rear end, and a keymemb'er i fitting in the radial groove of said collar hav- .A ing its inner end portion elongatedto engage j g against rotation Y in various adjusted positions. r i

In witness whereof I hereunto set my hand.` -WALTER F. STIMPSON'. 4 

